{"uid":"cap_Pb9qogp2TEsSUOmUISAip","slug":"x402-payment-requirements-probe-c5f77a55","name":"x402 Payment Requirements Probe","description":"Unpaid probe of a public https URL for x402 payment requirements ($0.005 USDC). Never pays. Returns HTTP status, latency, whether 402/payment-requirements parse, networks, min price, schema flag. https only; caps ~12s, 200KB, 5 redirects. Factual only; as is, no guarantee. Not a rating or certification. Provided as is, with no warranty or guarantee of accuracy or fitness. Nothing is stored.","url":"https://well-012-x402-probe.rainmaker-wells.workers.dev/api/x402-probe?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"https URL of an x402 resource or MCP origin to probe unpaid. http/file/data/localhost/private IPs rejected."},"method":{"type":"string","description":"Optional HTTP method: GET (default) or POST (empty JSON body)."}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2AJ5VnVTAATFsBGHlXfRA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Probes a public HTTPS URL to detect x402 payment requirements without paying, returning status, latency, parsed payment details, and network/price info.","exampleAgentPrompt":"Can you probe https://api.example.com/premium-data to see if it requires x402 payment — I want to know the minimum price, which networks are supported, and whether the payment-requirements header is valid, without actually paying anything?","exampleUseCases":[{"title":"Discover x402 cost before integrating","prompt":"Before I integrate this API, can you check https://data.someservice.xyz/feed to see if it's behind an x402 paywall, what the minimum price is, and which blockchain networks it accepts?"},{"title":"Validate x402 header on my own endpoint","prompt":"I just deployed my x402-gated endpoint at https://myapp.io/api/report — can you probe it and confirm the payment-requirements header is parsing correctly and the schema looks valid?"},{"title":"Monitor competitor pricing on x402 resources","prompt":"Can you check https://competitor.io/api/insights and tell me if it's x402-gated and what price it's charging per call in USDC?"}],"resultDescription":"Returns an object containing the HTTP status code of the probed URL, measured latency, a boolean indicating whether a 402 response was detected, parsed payment-requirements details (if present), supported blockchain networks, minimum price, and a flag indicating schema validity — all without making any payment.","failureModes":["Non-HTTPS URLs (http, file, data, localhost, private IPs) are rejected immediately","Requests exceeding ~12 seconds timeout are aborted","Responses larger than ~200KB are truncated or rejected","More than 5 redirects causes the probe to fail","If the target URL is unreachable, returns connection error details","Malformed x402 headers may result in parse errors reflected in the response"],"whenToPreferThis":"Use this endpoint when you need to inspect whether a URL enforces x402 payment requirements before committing any funds, or when you want to programmatically discover pricing and network details of an x402-gated resource. Prefer this over manually inspecting HTTP headers when you need structured, parsed output including minimum price, network list, and schema validity in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T06:44:16.118Z","isFirstParty":false,"canonicalSlug":"x402-payment-requirements-probe-c5f77a55"}